For professional results and easy operation, pick up Husqvarna's 570BTS backpack blower. The 570BTS is the most powerful blower in its class*. Featuring Husqvarna's innovative X-Torq® engine technology, the 570BTS delivers fuel savings up to 20% and 60% fewer emissions. Toolless handle adjustment and air filter access ensure easy servicing in the field. For maximum power and efficiency, Husqvarna's 570BTS blows away the competition. (*Based on Newton (N) blow force. Class defined as pro-grade petrol backpack blowers in the 63cc to 66cc range.) Product Highlights X-Torq® engine: X-Torq® engine cuts emission and fuel consumption Comfort handle: Comfortable handles Air Purge: Air purge for easier cold starting Commercial grade air filter: 2-stage intake air filtration results in less down time High blowing capacity: Effective fan design provide high blowing capacity Utilize full blow force with minimal arm strain: Offset handle makes the blow forces easier to control Ergonomic harness: Comfortable, load-reducing harness Adjustable handles: Adjustable handle increased comfort Ergonomic handle: Comfortable handle design LowVib®: LowVib® reduce vibrations Cruise control: Air speed cruise control Product Specifications Engine Cylinder displacement: 65.6 cm³Power output: 4 hpMaximum power speed: 8,000 rpmFuel tank volume: 74.4 fl ozIdling speed: 2,000 rpmElectrode gap: 0 inFuel consumption: 431 g/kWh Capacity Air flow in housing: 972 cfmAir flow in pipe: 768 cfmAir speed: 236.2 mphAir speed (flat nozzle): 202 mphAir speed (round nozzle): 236 mphBlowing Force: 37 N Dimensions Weight: 24.7 lbsProduct Size, LxWxH: 12.8 x 19.37 x 19.65 inTube length: 47.126 inTube diameter: 2.8 in Equipment Vacuum Kit: NoNozzle type: RoundSound and noiseSound pressure (15m): 76 dB(A)